全文获取类型
收费全文 | 9114篇 |
免费 | 719篇 |
国内免费 | 210篇 |
专业分类
儿科学 | 102篇 |
妇产科学 | 282篇 |
基础医学 | 257篇 |
临床医学 | 1618篇 |
内科学 | 658篇 |
皮肤病学 | 18篇 |
神经病学 | 17篇 |
特种医学 | 117篇 |
外国民族医学 | 2篇 |
外科学 | 4509篇 |
综合类 | 1265篇 |
现状与发展 | 2篇 |
预防医学 | 268篇 |
眼科学 | 1篇 |
药学 | 363篇 |
31篇 | |
中国医学 | 88篇 |
肿瘤学 | 445篇 |
出版年
2024年 | 7篇 |
2023年 | 185篇 |
2022年 | 256篇 |
2021年 | 455篇 |
2020年 | 493篇 |
2019年 | 345篇 |
2018年 | 338篇 |
2017年 | 378篇 |
2016年 | 471篇 |
2015年 | 387篇 |
2014年 | 755篇 |
2013年 | 708篇 |
2012年 | 562篇 |
2011年 | 706篇 |
2010年 | 576篇 |
2009年 | 496篇 |
2008年 | 422篇 |
2007年 | 429篇 |
2006年 | 377篇 |
2005年 | 376篇 |
2004年 | 283篇 |
2003年 | 178篇 |
2002年 | 162篇 |
2001年 | 109篇 |
2000年 | 99篇 |
1999年 | 80篇 |
1998年 | 60篇 |
1997年 | 53篇 |
1996年 | 69篇 |
1995年 | 52篇 |
1994年 | 56篇 |
1993年 | 29篇 |
1992年 | 19篇 |
1991年 | 12篇 |
1990年 | 6篇 |
1989年 | 5篇 |
1988年 | 7篇 |
1987年 | 5篇 |
1986年 | 3篇 |
1985年 | 4篇 |
1983年 | 4篇 |
1982年 | 4篇 |
1981年 | 2篇 |
1980年 | 4篇 |
1979年 | 2篇 |
1978年 | 3篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1972年 | 3篇 |
1969年 | 1篇 |
排序方式: 共有10000条查询结果,搜索用时 16 毫秒
61.
Hiroshi Yano Masahiro Murakami Yoshiaki Nakano Takeshi Tono Tadashi Ohnishi Takashi Iwazawa Yutaka Kimura Toshiyuki Kanoh Takushi Monden 《Digestive endoscopy》2004,16(4):343-346
We performed laparoscopic appendectomy and drainage to treat panperitonitis due to perforated appendicitis that occurred in a 28‐year‐old woman. We believe this is an appropriate procedure to treat perforated appendicitis because it is safe and minimally invasive, and faster recovery can be expected than after conventional open appendectomy. 相似文献
62.
63.
Z.K. OTROCK M.A. SEOUD† M.J. KHALIFEH‡ J.A. MAKAREM & A.I. SHAMSEDDINE 《International journal of gynecological cancer》2006,16(5):1933-1935
Metastatic carcinoma of the spleen occurs in a setting of widespread malignant disease. Solitary parenchymal splenic metastasis of ovarian carcinoma is rare. We report a case of a 59-year-old woman who presented with an elevated serum CA125 level due to a solitary splenic metastasis after a long disease-free period. She was treated with laparoscopic splenectomy followed by chemotherapy. The literature contains 16 cases of solitary parenchymal splenic metastasis of ovarian carcinoma. Our case is the third case that was treated with laparoscopic splenectomy. We review the literature, and we focus on the laparoscopic approach in managing these cases. 相似文献
64.
目的探讨老年人急性胆囊炎的腹腔镜治疗特点。方法将我院2001年4月~2006年4月收治的164例LC老年病例分为早期组(85例,急性发作48h内)与延期组(79例,急性发作48h后)进行比较分析。同时,将老年人组(164例)与非老年人组(164例)进行比较分析。结果延期组较早期组LC手术时间和平均住院时间明显延长;老年人组较非老年人组LC手术时间延长,术中出血量及术后并发症明显增多。结论老年急性胆囊炎病人宜早期施行LC。老年女性常因妇科炎症且腹腔内粘连,使LC难度增加,术中、术后并发症的发生率增高。 相似文献
65.
目的探讨腹腔镜远端胃癌根治术的可行性及手术方法。方法行腹腔镜远端胃癌根治术15例,D1清扫3例,D2/D2 12例。全部病例均行毕Ⅱ式胃空肠吻合。结果15例成功进行腹腔镜手术。手术时间平均(218.6±31.6)min,术中出血量平均(132.4±21.3)ml,清扫淋巴结平均(33.4±13.6)个。肿瘤近端切缘(6.6±0.9)cm,远端切缘(5.4±0.6)cm,术后肛门排气时间平均(3.5±0.6)d,无手术死亡,无吻合口漏,术后并发肺部感染1例,经治疗后痊愈。术后随访1~10个月,无肿瘤复发或转移。结论腹腔镜远端胃癌根治术能达到与开腹胃癌标准根治术(D2)的淋巴结清扫范围及肿瘤切缘,且具有创伤小、出血少、术后恢复快等优点。 相似文献
66.
OBJECTIVE: Laparoscopic surgery is increasingly being performed for benign and malignant colorectal disease. This study examines the short-term results in a consecutive series of laparoscopic colorectal procedures performed over 2 years. METHOD: A prospective database was established for all elective patients undergoing laparoscopic colorectal surgery by one surgeon. The main outcome measures assessed were operative duration, conversion rate, length of hospital stay, morbidity and mortality and lymph node harvest. RESULTS: Two hundred and thirty-one consecutive patients were referred for elective colorectal surgery, with 18 patients excluded from laparoscopic surgery. Thirteen patients had nonresective laparoscopic colorectal procedures for endometriosis and have been excluded from the series. Of 200 patients who underwent a laparoscopic colorectal procedure, 114 (57%) were female, the median age was 67 years (inter-quartile range (IQR) 57-76), and there were 116 malignancies. The most common operations were anterior resection and sigmoid colectomy (n = 82), right hemicolectomy (n = 62) and left hemicolectomy (n = 12). The median operating time was 120 min (IQR 90-150) and 10 patients (5%) required conversion to open surgery. The median lymph node harvest in malignancies was 21 nodes (IQR 15-30) and no positive resection margins were found. There were two deaths and 29 significant complications (14.5%), with seven patients requiring re-operations because of postoperative complications. The median postoperative hospital stay was 4 days (IQR 3-6) and 13 patients (6.5%) were re-admitted within 30 days of hospital discharge. CONCLUSION: Laparoscopic colorectal surgery is possible for most benign and malignant conditions, with low conversion and complication rates, as well as short hospital stay. 相似文献
67.
68.
69.
James D Fogarty Jason M Hafron David M Hoenig Reza Ghavamian 《JSLS, Journal of the Society of Laparoendoscopic Surgeons》2005,9(2):199-204
OBJECTIVES: Nephron-sparing surgery has emerged as the treatment of choice for the incidentally detected small renal mass, especially those less than 4 cm in size. We describe our technique and experience with the laparoscopic excision of these lesions. METHODS: Between June 2001 and October 2003, 20 patients underwent nephron-sparing surgery at our institution. Twenty-one laparoscopic partial nephrectomy procedures were performed. All tumors were detected incidentally by cross-sectional imaging. All patients had a solid renal mass or a complex cystic renal mass of Bosniak category III or greater. All solid tumors were exophytic and less than 4cm in diameter. Both transperitoneal and retroperitoneal approaches were used. Hemostasis was achieved without hilar control in 20 of the 21 cases. RESULTS: Twenty renal units were approached transperitoneally, and 1 retroperitoneally. Mean tumor size was 2.6 cm (range, 1.2 to 4). Mean estimated blood loss was 211 mL (range, 50 to 500), and mean operative time was 165 minutes. Pathology revealed renal cell carcinoma in 14 (70%). No intraoperative complications occurred. Two patients required blood transfusions postoperatively. CONCLUSION: Carefully selected patients with small, exophytic renal masses can safely undergo laparoscopic excision. When achievable, this procedure can be a more logical alternative to ablative techniques for the minimally invasive management of such lesions. 相似文献
70.